Printer s roller



(No Modfal.) v P,

PRINTERS ROLLER. No. 271,567. Patented Jan.30, 1883.

ATTORNEYS.

WITNESSBS;

N. PETERS. mnu-umngmphw, wnshsngmn, n. a

l i u L NiTn STATES PATENT 'erica LUOIAN P. BARDWELL, OF MARION, IOWA.

PRI NTERS ROLLER.

.SPECIFICATION forming part of Letters Patent No. 271,567, dated January30, 1883, Application filed May 22, 1882. (No model.)

To all whom it may concern:

Be it known that I, .LUGIAN P. BARDWELL, of Marion, in the county ofLinn and State of Iowa, have invented certain new and usefulImprovements in Printers7 Rollers; and I do hereby declare that thefollowing isa full, clear, and exact description of the invention, whichwill enable others skilled in the art to which it appertains to make anduse the same, reference beinghad to the accompanying drawings, whichform a part of this specification, and in which- Figure l is alongitudinal section of my improred printers roller with its false core.Fig. 2 is a similar view of the same as it appears after the false corehas been removed and it is ready for the insertionof the permanent core.Fig. 3 is a cross-section of the roller, with its twine-wound insidetube and permanent core; and Fig. 4 is a sideviewof the false coreremoved from the roller 'after casting.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention has relation to printers7 rollers, or inking-roller's forinking type in printing-presses; and it consists in the detailedconstruction of a tubular roller as an article of manufacture, as andfor the purpose hereinafter more fully described.

My improved tubular printers roller is castupon a tubular core, (shownatA in the accompanying drawings,) made of card-board. The card-board,having been -first cut to the proper length and width, is Wound aroundafalse core, which is made in two sections, B and B', of wood, metal, orany other suitable' material. 'lhe sides of the sections B and B facingeach other are cut oli' obliquely or slanting, as clearly shown in thedrawings, the slant or bevel running in opposite directions, so thatwhen placed together they will form a perfect cylinder, forming the coreof the tube A. These false cores are made in sizes to correspond to thestandard sizes of the permanent cores used in printing-press rollers,and the manner of arranging and using them for casting is as follows:The parts B and B' having been placed in juxtapositiomthe card-board isWound around them to form the tube shown at A, and held temporarily inposition by slipping two or three rubber bands over it. I then take apiece of any suitable twine or cord, and, commencing at the middle oftube A, wind the twine tightly around it to the end, thence back againacross the middle to the other end, and back to the middle again, wherethe cord or twineis tied, thus making a twine covering around'thecard-board tube, as shown at C, when the false core, with its tube, isready to be placed in the mold. After casting, the whole isWithdrawnfrom the mold and the composition is properly trimmed on thetube, after which the false core is removed from tube A by pulling theparts B and B in opposite directions. The roller is then ready to be putupon the permanent core when wanted for use. This may be done in variousways, which will readily suggest themselves to the practical printer. Bybrushing the permanent core with melted glue, paste, or any othersuitable adhesive substance, the card-board tube will be. fixed asfirmly upon the permanent core as if the'roller had been cast upon it.If necessary to make a snug or perfect lit, the permanent core may bewound with twine or paper until it is of the requisite dimensions to fitthe tubular core A of the roller. f

Gard-board possesses advantages over other material inl the constructionof the cores on account of its cheapness and ductility, and also becausethe twine, when wound tightly around it, will so indent it as to form aslightlycorrugated inner surface, which operates to hold the rollertirmly upon its permanent core without slipping, besides formingcreases, which make room for the glue or other adhesive substance usedfor xing the roller upon the core.

These tubular rollers may be kept on hand any length of time, and arealways ready for use. Itisobvious that any desired or approved rollercomposition may be used in their manufacture, and that they may to orderof any desired length and diameter.

I .am aware-that rollers for chromatic printing or color-printing havebeen composed ot' detachable bushes faced with rubber, and used upon thestock or core, in combination with washers inserted between the sectionsto hold the rubber from spreading, as shown and be manufactureddescribed in Robert- J. Stuarts patent of July as and for the purposeherein shown and dero 18,1871, No. 117,219; but I do not claim ascribed. l

In testimony that I claim the foregoing as sectionally-constructedroller.

What I claim as my improvement, and demy own I have hereunto aixed mysignature sire to secure by Letters Patent of the United in presence oftwo witnesses. States, is- LUCIAN P. BARDVVELL.

As an improved article of manufacture, a Witnesses:

DAVID MAGEE,

printers roller having a tubular core made 0f card-board wound withtwine, substantially OTIs T. RICHMOND.

